diff --git a/AGENTS.md b/AGENTS.md
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--- a/AGENTS.md
+++ b/AGENTS.md
@@ -1,6 +1,7 @@
 # Repository Guidelines
 
 - Repo: https://github.com/openclaw/openclaw
+- In chat replies, file references must be repo-root relative only (example: `extensions/bluebubbles/src/channel.ts:80`); never absolute paths or `~/...`.
 - GitHub issues/comments/PR comments: use literal multiline strings or `-F - <<'EOF'` (or $'...') for real newlines; never embed "\\n".
 - GitHub comment footgun: never use `gh issue/pr comment -b "..."` when body contains backticks or shell chars. Always use single-quoted heredoc (`-F - <<'EOF'`) so no command substitution/escaping corruption.
 - GitHub linking footgun: don’t wrap issue/PR refs like `#24643` in backticks when you want auto-linking. Use plain `#24643` (optionally add full URL).